<template>
	<div class="icons">
    
		<swiper :options="swiperOption">
			<swiper-slide v-for="(page, index) of pages" :key="index">
				<div class="icon" v-for="item of page" 
				:key="item.id">
					<div class="icon-img">
						<img class="icon-img-content" :src="item.imgUrl" />
					</div>
					<p class="icon-desc">{{item.desc}}</p>
				</div>
			</swiper-slide>
		</swiper>
	</div>
</template>

<script>
	export default {
		name: 'HomeIcons',
		props: {
			list: Array
		},
		data () {
			return {
				swiperOption: {
					autoplay: false
				}
			}
		},
		computed: {
			pages () {
        //判断图标应该所处的页数并push
				const pages = []
				this.list.forEach((item, index) => {
					const page = Math.floor(index / 8)
					if(!pages[page]) {
						pages[page] = []
					}
					pages[page].push(item)
				})
				return pages
			}
		}
	}
</script>

<style lang="stylus" scoped>
  @import '~styles/varibles.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height: 0
    padding-bottom: 50%
  .icons
    margin-top: .1rem
    .icon
      position: relative
      overflow: hidden
      float: left
      width: 25%
      height: 0
      padding-bottom: 25%
      .icon-img
        position: absolute
        top: 0
        left: 0
        right: 0
        bottom: .44rem
        box-sizing: border-box
        padding: .1rem
        .icon-img-content
          display: block
          margin: 0 auto
          height: 100%
      .icon-desc
        position: absolute
        left: 0
        right: 0
        bottom: 0
        height: .44rem
        line-height: .44rem
        text-align: center
        color: $darkTextColor
        ellipsis()

</style>
